Expression of micro RNA-21 and 29c in blood plasma of patients with nasopharyngeal carcinoma

Abstract

MicroRNA (miRNA) are small non-coding RNA molecules that work in post-transcription and can cause degradation and cell damage through the targeted gene. Damage to these cells influences the process of carcinogenesis. One of them is in nasopharyngeal carcinoma (NPC). Among families of miRNA that play a role in the pathogenesis of NPC that miRNA-21, miRNA-29c and which is closely associated with the progression, invasion and tumor metastasis. The purpose of this study was to determine the expression of miRNA-21 and miRNA-29c. Knowledge of these miRNA could help in the development of targeted therapy in carcinoma, as a biomarker diagnostic and clinical predictive and would be useful in therapeutic decision making. The research design was observational analytic study carried out in Wahidin Sudirohusodo Makassar, January-June, 2017. The collected blood plasma was isolated and then synthesized to cDNA and calculated quantitatively with qRT-PCR and analyzed using CFX manager 96. There were 52 samples consisting of 27 plasma NPC and 25 controls. From the plasma detected miRNA-21 and miRNA-29c. Expression of miRNA-21 increased 4.47795 fold compared with controls (p<0.05)) but its expression can not describe the progression of the tumor at a later stadium (p<0.05). In contrast, the expression of miRNA-29c decreased -119.317 fold compared with control, its regulation at a later stadium did not change significantly. Both miRNA-21 and miRNA-29c in blood plasma can use for NPC detection but a single microRNA examination is less able to provide an overview of progressivity.

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